I have used these for a few months now for swimming and had previously tried a few waterproof mp3s. The VRX definitely surpasses the others in terms of music quality and I feel they are very secure under the provided swim cap. They do have to go into the silicone case for swimming, but I get their logic for better sound quality. I also use them for running. The music quality is far better than the others then and of course no wires. I set my own training session messages, but there are tons of pre-prepared ones in their database for free. I use the headphones at least 4 times a week. Highly recommend. . Posted on 12/12/2015